Milling-cutter or abrasive-wheel profile generator.



` P; BROWN 6r P. J. BOSTOCK.

MILLING GUTTER 0E ABELsIvE WHEEL PROFILE GENERATOR.

ArrLmAfnon rILEEoo'm, ma.

Patented June 16, 1914 3 SHEETS-SHEET 1.

BROWN n P. J. ROSTOCK.. MILLNG GUTTER OR ABRASIVE WHEEL YROFILE GENERATOR.

AIPMOAVTION FILED 0GT.B, 19131 l 111160,524. Patented June 16,1914;Y

3 SHEETS-SHEET Z.

P. BROWN & F.IJ.'B0ST0CK. MILLING GUTTER 0E 'ABEAsIvE WHEEL PROFILE GENERATOR.

APPLIoATIon' EI'LED oom, ma.vv

A' Patented June 16, 1914.

3 SHEETS-{HEBT} 3.

wm 1 l I roizmhomc y 45 and held b ter and provided i whihtele ntsrwhich when turned? strati-Es rimer BROWN YAiviiiuznircis JoHN isosrocn, or nunnnnsrrntn, metano.

Be itknown that we, Pliner BROWN and '.Fniiivois JoHN- Bos'rocx, subjects of King GeorgeV-of Great'Britain', residin at Hudderseld, in the conty 'of York, `ngland,

.have invented 'certain new vand usefuLIm-f i'ovements in'- Milling-"Cutter, or AbrasiveliYheelfProle ureiierators,l of which the fol'- lo'wing -i's-.a specification.

.i The. object of ourinvention is to provide a newvor improved device for generating the .profiles @ofmilling 'cutters'or of abrasive -whfccls employedk 1 cuttin'g and grinding 'worins, s "irals or ike gears softliat fwhatever ange of toot it maybe desired to produce, or to grind; the device can be readily adjusted firstt()v one anglefand then to the opposite angleto generateor., grind the' l cut-'origrind` lthe an ar sides o flthel toothv or teetlire'quired suitable scale, such as s hown'at 15, is providedfor indicating A the 'angle ofthe-cutting tool 12 withrespect 1 -to the axisof tl1e'bearings"2.' "Inorder-tha't our invention may ybe f ully understood. reference is v.hereinafter had" to 4the'accompanying drawings', in which 4Figure 1 is anl elevation of our improved milling i cutter .Frofile' generator; Fig. `2 is 3 0 a planv view of ig. f1 partly in section; Fig.

3 isa sectional elevation taken n line A'TA, Al `ig'.'2, Figs. 4, 5 and 6' are' elevation,j' '1an Vvie'vv"iind sectional elevation corresponwing to Figs. 1,2 and 3 respectively,' showingjthe .35 device as modified in construction for *use in connection with yabrasive. wlieel profile' generators, and Fig. 7 is a detail ,illustrating the mode of employmentrof the' device. Referring to the drawings, and'irstly to 40 Figs. 1, 2 and 3, the device comprises. a holder 1f of suitable. size and sha e, having turned ends or spindles 2, 2, an a central' opening 3 therethrough. YThe' said' holder is SpecicationotLetters Patenti Y Pateted'; Application mea october s, isis.A serial No. 794,646.

' one .directionslacken the parts and Aenable device.

constructed to vadmit of -its bcing'centered a. chuck in aprofile generating macliine. ithinzthe s'alid' opening 3 lits loosely,so as to be adapted to turn freely thereim'a swivelin Vtool carrier 4 provided in this instance wit conical 'headedstuds or i' 5 pivotzpins, onlyione of which is .shown atf5 ,in 1?" j 2, which register with kconical open-l 'i-ngsgin the 4tool carrier. The said pins or studsfrest in bearings 6in the holder 1 and ,f the ofiter ends thereof are reduced iii diame- 'suitable revolving axis.'-

with screwthreads on mmaacurrnn for. niznnsrvn-wnnnrl rnorILE'I'eENniiron.

the tool carrier to be, turnedv or swiveled l about 'the studs 5 "as a lcenter and, when screwed up tightly in the other direction, rigidly Vsecure. tlietool cari-ier in any posi` vlongitudinal opening l1 into'wh'iclinda t'-l ed to beinserted the profilecutter 12 which is secured in v'any position vertically by 13 the profile cuttcrcan be adjusted vertically to any extent within the limits of the The position. of'theproile cutter is s uch that'the upper point ofthe cutting 75 I edge, that i's to say the point 14, is inii'ccu` cari-ier is-moved the oint 14 will be in s0v alineinent or radial with the pivot center of said carrier as well as in alinement with the horizontal axis of the holder.- On the carrier 4 is a scale 15 and on the holder mmediately above same is a Vernier (not shown) g5 Given lthe angle of the tooth which -is to be' produced by the cutter piolc generator, the carrier 4 is turned on its centers until the cutter' is brought to the desired angle, -as ascertained from the scale and vernier,-andj fg is then secured in position. The device is held in the machine Between suitable chucks 16,16, (Fig. 7) in the usual way of holding a work Ys indle, and re# ccives a rotary and "-an'en wise motion 'or 95 lead for each cutting strokethc cutting edgel angle said cutter blankb'ein A aww f enfone side o the Profile .0f-the cutterL bee tiallyrotated to reverse t ipositionogthe spindle and the cuttinge geef theV cutter 105 and [the carrier V'a1so is released and turned to bring the cutter tojthe opposite corre-4 sponding anglel and then re-'secured to the. holder, so that the profile'on the other side* inserted in the milling machine it; will cutA of `generati1-1gr milling cutter-` or abrasiveI the teeth in the blanket@ the exact angle dewheel-profiles.. .i fj" 45 termined by the. angular position of the cm-A The details of construction niyfbe vv iiried rier. j For generating' the profile of ubrusive lwithout departing from the spirit and Scope Y wheels, :irdiamond is employed in place of of-our invention as set forthin the :L cutter and the device isthereforemodiunnized. r' H fied to receive the diamond and to enable the Having thls described our invention, whgt 60 .st-iid diamond tebe.manually'reciprocated we claim us new endif..v desire tdffsecuref-by to moveto und fro along the profile ofthe Letters Patent ,isz` j lo abrasive wheel. y 1. In azdeviceof'the charcterdescribed, f Referring to Figs. 4, .5 and 6' the Aholder the combination, with a. holder, of an nd-V l :md swiveling carrier ltwarefthe same as instable? carrier pivoted Ato 'the -h0`lder,,a 55\ (llrscril'wd with reference to Figs. l, 2 and -rcvoluble bush-mounted in the carrier and 18 'rcln'cscnts the diamond which is'searranged erossWse'f-the holder, and acut- 1'5fcui'ccl to a spindle 19 supported in. a 'long ting toolr1')ro vi led with a. shank arranged f hzirlngn the bush 9 secured to the carrier longxtudinallyjnthe busl1"andl eccentric of 4 by nut 8., The carrier 4 is swiveled to it-sexis;v w 60 the angle required, as previously explained, '2. In a dev i ee of the character described, t to producc tlic pro e on one side of the the combmatlon', wltif :L holder, ofan advv20 abrasive wheel, und is then turned over to 'justable c urrier pivotedito-"the' holder, a

' printing the said the opposite coiresponding angleto produce rcvcluble bush mounted inthe carrier'and the prole on the other side of the abrasive arranged crosswise ofthei holder, a-'cutting 65 L wheel, the nut 8 being released to allowv of -tool providedivth'a Shlink-arrenged-lon the spindle' 19 beingturnedto the cxten-tudnally inthe bush`andleccentri` of ,lts

required to reverse @he posit-ion ofthe din.'- uxis, and operatin' mechanislrn'A for sliding v n mmLy L pinionv 20' 'fast ori-a' spindle 21,' the shank buck-'an "forth in the ush. nctimtulby hand wheel 22, is providedin f 3. In a device of the character described, 7 0" ix-dcr that the o erator by manually op the combination, with nholderhaving spn-V 'y iizinctwheel can .tranmit illes :itgits "ends, of'fafem-rier pivoted 'to theV I 3 0' :1 'rolexy motion first; .111; one direction and midrllepni'tfof thelxolderiund movable in than the. other to impart, througlra toothed, -thc pluneof the nxis-pf..-its.spindles, 'a revo-l rfi/'fk onthe spindle`l9, a sharp reciprocating. luble b ush mounted-1n l thecurrier andfermotonit'o the-said spindle :md-diamond to, munged cross vise 'ofntheholder,rand'acut- .1

\.1no've the lutter ,toand-fro-over the .profile :ting tool '-providedfwith a..shank. arranged ing generated. Y longitudinally in the bush and eccentric' of I Wille meansfdescribed lierein comprise a, its axis.`* -21 'simple :md effective device for generzitm' ,In testu'nonywhcrebf we atliz;iouxysigna. soA with accuracy thereqlnrc'd profile orcurv tures m 'the presence oftwo witnesses.:

for-m on n nl illingutter or" abrasive wheel PERCY BR 1. U Y il'xilintcd. from :i strziightline ;S\1 h 11s..,14'ir. f. HiT-FRANCIS .JOHN ROSTOCK. the. diamond 1S, and requires no skiud Witngcsyj labor to obtain results with acertaintyjnd Winmmr, i

accmfncyiiot'possiblein thepresent methods .i C. E. I ljieii'nnfr.- 

